大临铁路区域活动断裂地热特征与地质选线研究  

Research on Geothermal Characteristics and Geological Route Selection of Active Faults in Dali-Lincang Railway Area

作　　者：赵福玉 张蕊 刘伟[1] 杜宇本 ZHAO Fuyu;ZHANG Rui;LIU Wei;DU Yuben(China Railway Eryuan Engineering Group Co.,Ltd.,Chengdu 610031,China;Southwest Jiaotong University,Chengdu 611751,China)

机构地区：[1]中铁二院工程集团有限责任公司,四川成都610031 [2]西南交通大学,四川成都6117561

出　　处：《云南水力发电》2024年第4期38-42,共5页Yunnan Water Power

摘　　要：大理至临沧铁路跨过澜沧江后穿行于云县—临沧花岗岩体,地形地貌和地质条件复杂,铁路长大隧道设置不可避免,工程艰巨,深大活动断裂及高地温热害控制线路方案。结合白石头隧道地质勘察,分析了区域花岗岩体的多期次叠加侵入和形成机理,以及凤庆-云县—临沧水热活动带内活动断裂、地热分布特征和地热成因,开展高原艰险山区铁路综合地质选线研究,成功避开了区域地热异常带,推荐了常温带作为隧道线路方案,经过施工验证,推荐方案合理、可行。Dali-Lincang Railway crosses the Lancang River and passes through the Yunxian Lincang granite body.The terrain,topography,and geological conditions are complex,and the installation of long tunnels on the railway is inevitable.The project is arduous,and the control line scheme for deep and large active faults and high temperature thermal hazards is proposed.Based on the geological survey of the Baishi Tunnel,this study analyzed the multi-stage superimposed intrusion and formation mechanism of the regional granite rock mass,as well as the active faults,geothermal distribution characteristics,and geothermal genesis in Fengqing-Yun County-Lincang hydrothermal activity zone.A comprehensive geological route selection study was carried out for railways in difficult mountainous areas on the plateau,successfully avoiding the regional geothermal anomaly zone.The normal temperature zone was recommended as the tunnel route plan.After construction verification,the recommended plan was reasonable and feasible.

关 键 词：大临铁路 活动断裂 高地温 地质选线 

分 类 号：U211.9[交通运输工程—道路与铁道工程] U212.32